1fc831825SYuval Mintz /* QLogic qed NIC Driver 2e8f1cb50SMintz, Yuval * Copyright (c) 2015-2017 QLogic Corporation 3fc831825SYuval Mintz * 4e8f1cb50SMintz, Yuval * This software is available to you under a choice of one of two 5e8f1cb50SMintz, Yuval * licenses. You may choose to be licensed under the terms of the GNU 6e8f1cb50SMintz, Yuval * General Public License (GPL) Version 2, available from the file 7e8f1cb50SMintz, Yuval * COPYING in the main directory of this source tree, or the 8e8f1cb50SMintz, Yuval * OpenIB.org BSD license below: 9e8f1cb50SMintz, Yuval * 10e8f1cb50SMintz, Yuval * Redistribution and use in source and binary forms, with or 11e8f1cb50SMintz, Yuval * without modification, are permitted provided that the following 12e8f1cb50SMintz, Yuval * conditions are met: 13e8f1cb50SMintz, Yuval * 14e8f1cb50SMintz, Yuval * - Redistributions of source code must retain the above 15e8f1cb50SMintz, Yuval * copyright notice, this list of conditions and the following 16e8f1cb50SMintz, Yuval * disclaimer. 17e8f1cb50SMintz, Yuval * 18e8f1cb50SMintz, Yuval * - Redistributions in binary form must reproduce the above 19e8f1cb50SMintz, Yuval * copyright notice, this list of conditions and the following 20e8f1cb50SMintz, Yuval * disclaimer in the documentation and /or other materials 21e8f1cb50SMintz, Yuval * provided with the distribution. 22e8f1cb50SMintz, Yuval * 23e8f1cb50SMintz, Yuval * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24e8f1cb50SMintz, Yuval * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25e8f1cb50SMintz, Yuval * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26e8f1cb50SMintz, Yuval * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27e8f1cb50SMintz, Yuval * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28e8f1cb50SMintz, Yuval * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29e8f1cb50SMintz, Yuval * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30e8f1cb50SMintz, Yuval * SOFTWARE. 31fc831825SYuval Mintz */ 32fc831825SYuval Mintz 33fc831825SYuval Mintz #include <linux/types.h> 34fc831825SYuval Mintz #include <asm/byteorder.h> 35fc831825SYuval Mintz #include <asm/param.h> 36fc831825SYuval Mintz #include <linux/delay.h> 37fc831825SYuval Mintz #include <linux/dma-mapping.h> 38fc831825SYuval Mintz #include <linux/etherdevice.h> 39fc831825SYuval Mintz #include <linux/interrupt.h> 40fc831825SYuval Mintz #include <linux/kernel.h> 41fc831825SYuval Mintz #include <linux/log2.h> 42fc831825SYuval Mintz #include <linux/module.h> 43fc831825SYuval Mintz #include <linux/pci.h> 44fc831825SYuval Mintz #include <linux/slab.h> 45fc831825SYuval Mintz #include <linux/stddef.h> 46fc831825SYuval Mintz #include <linux/string.h> 47fc831825SYuval Mintz #include <linux/version.h> 48fc831825SYuval Mintz #include <linux/workqueue.h> 49fc831825SYuval Mintz #include <linux/errno.h> 50fc831825SYuval Mintz #include <linux/list.h> 51fc831825SYuval Mintz #include <linux/spinlock.h> 52fc831825SYuval Mintz #include <linux/qed/qed_iscsi_if.h> 53fc831825SYuval Mintz #include "qed.h" 54fc831825SYuval Mintz #include "qed_cxt.h" 55fc831825SYuval Mintz #include "qed_dev_api.h" 56fc831825SYuval Mintz #include "qed_hsi.h" 57fc831825SYuval Mintz #include "qed_hw.h" 58fc831825SYuval Mintz #include "qed_int.h" 59fc831825SYuval Mintz #include "qed_iscsi.h" 60fc831825SYuval Mintz #include "qed_ll2.h" 61fc831825SYuval Mintz #include "qed_mcp.h" 62fc831825SYuval Mintz #include "qed_sp.h" 63fc831825SYuval Mintz #include "qed_sriov.h" 64fc831825SYuval Mintz #include "qed_reg_addr.h" 65fc831825SYuval Mintz 66fc831825SYuval Mintz struct qed_iscsi_conn { 67fc831825SYuval Mintz struct list_head list_entry; 68fc831825SYuval Mintz bool free_on_delete; 69fc831825SYuval Mintz 70fc831825SYuval Mintz u16 conn_id; 71fc831825SYuval Mintz u32 icid; 72fc831825SYuval Mintz u32 fw_cid; 73fc831825SYuval Mintz 74fc831825SYuval Mintz u8 layer_code; 75fc831825SYuval Mintz u8 offl_flags; 76fc831825SYuval Mintz u8 connect_mode; 77fc831825SYuval Mintz u32 initial_ack; 78fc831825SYuval Mintz dma_addr_t sq_pbl_addr; 79fc831825SYuval Mintz struct qed_chain r2tq; 80fc831825SYuval Mintz struct qed_chain xhq; 81fc831825SYuval Mintz struct qed_chain uhq; 82fc831825SYuval Mintz 83fc831825SYuval Mintz struct tcp_upload_params *tcp_upload_params_virt_addr; 84fc831825SYuval Mintz dma_addr_t tcp_upload_params_phys_addr; 85fc831825SYuval Mintz struct scsi_terminate_extra_params *queue_cnts_virt_addr; 86fc831825SYuval Mintz dma_addr_t queue_cnts_phys_addr; 87fc831825SYuval Mintz dma_addr_t syn_phy_addr; 88fc831825SYuval Mintz 89fc831825SYuval Mintz u16 syn_ip_payload_length; 90fc831825SYuval Mintz u8 local_mac[6]; 91fc831825SYuval Mintz u8 remote_mac[6]; 92fc831825SYuval Mintz u16 vlan_id; 93fc831825SYuval Mintz u8 tcp_flags; 94fc831825SYuval Mintz u8 ip_version; 95fc831825SYuval Mintz u32 remote_ip[4]; 96fc831825SYuval Mintz u32 local_ip[4]; 97fc831825SYuval Mintz u8 ka_max_probe_cnt; 98fc831825SYuval Mintz u8 dup_ack_theshold; 99fc831825SYuval Mintz u32 rcv_next; 100fc831825SYuval Mintz u32 snd_una; 101fc831825SYuval Mintz u32 snd_next; 102fc831825SYuval Mintz u32 snd_max; 103fc831825SYuval Mintz u32 snd_wnd; 104fc831825SYuval Mintz u32 rcv_wnd; 105fc831825SYuval Mintz u32 snd_wl1; 106fc831825SYuval Mintz u32 cwnd; 107fc831825SYuval Mintz u32 ss_thresh; 108fc831825SYuval Mintz u16 srtt; 109fc831825SYuval Mintz u16 rtt_var; 110fc831825SYuval Mintz u32 ts_time; 111fc831825SYuval Mintz u32 ts_recent; 112fc831825SYuval Mintz u32 ts_recent_age; 113fc831825SYuval Mintz u32 total_rt; 114fc831825SYuval Mintz u32 ka_timeout_delta; 115fc831825SYuval Mintz u32 rt_timeout_delta; 116fc831825SYuval Mintz u8 dup_ack_cnt; 117fc831825SYuval Mintz u8 snd_wnd_probe_cnt; 118fc831825SYuval Mintz u8 ka_probe_cnt; 119fc831825SYuval Mintz u8 rt_cnt; 120fc831825SYuval Mintz u32 flow_label; 121fc831825SYuval Mintz u32 ka_timeout; 122fc831825SYuval Mintz u32 ka_interval; 123fc831825SYuval Mintz u32 max_rt_time; 124fc831825SYuval Mintz u32 initial_rcv_wnd; 125fc831825SYuval Mintz u8 ttl; 126fc831825SYuval Mintz u8 tos_or_tc; 127fc831825SYuval Mintz u16 remote_port; 128fc831825SYuval Mintz u16 local_port; 129fc831825SYuval Mintz u16 mss; 130fc831825SYuval Mintz u8 snd_wnd_scale; 131fc831825SYuval Mintz u8 rcv_wnd_scale; 132fc831825SYuval Mintz u32 ts_ticks_per_second; 133fc831825SYuval Mintz u16 da_timeout_value; 134fc831825SYuval Mintz u8 ack_frequency; 135fc831825SYuval Mintz 136fc831825SYuval Mintz u8 update_flag; 137fc831825SYuval Mintz u8 default_cq; 138fc831825SYuval Mintz u32 max_seq_size; 139fc831825SYuval Mintz u32 max_recv_pdu_length; 140fc831825SYuval Mintz u32 max_send_pdu_length; 141fc831825SYuval Mintz u32 first_seq_length; 142fc831825SYuval Mintz u32 exp_stat_sn; 143fc831825SYuval Mintz u32 stat_sn; 144fc831825SYuval Mintz u16 physical_q0; 145fc831825SYuval Mintz u16 physical_q1; 146fc831825SYuval Mintz u8 abortive_dsconnect; 147fc831825SYuval Mintz }; 148fc831825SYuval Mintz 149fc831825SYuval Mintz static int 150fc831825SYuval Mintz qed_sp_iscsi_func_start(struct qed_hwfn *p_hwfn, 151fc831825SYuval Mintz enum spq_mode comp_mode, 152fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr, 153fc831825SYuval Mintz void *event_context, iscsi_event_cb_t async_event_cb) 154fc831825SYuval Mintz { 155fc831825SYuval Mintz struct iscsi_init_ramrod_params *p_ramrod = NULL; 156fc831825SYuval Mintz struct scsi_init_func_queues *p_queue = NULL; 157fc831825SYuval Mintz struct qed_iscsi_pf_params *p_params = NULL; 158fc831825SYuval Mintz struct iscsi_spe_func_init *p_init = NULL; 159fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 160fc831825SYuval Mintz struct qed_sp_init_data init_data; 161fc831825SYuval Mintz int rc = 0; 162fc831825SYuval Mintz u32 dval; 163fc831825SYuval Mintz u16 val; 164fc831825SYuval Mintz u8 i; 165fc831825SYuval Mintz 166fc831825SYuval Mintz /* Get SPQ entry */ 167fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 168fc831825SYuval Mintz init_data.cid = qed_spq_get_cid(p_hwfn); 169fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 170fc831825SYuval Mintz init_data.comp_mode = comp_mode; 171fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 172fc831825SYuval Mintz 173fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 174fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_INIT_FUNC, 175fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 176fc831825SYuval Mintz if (rc) 177fc831825SYuval Mintz return rc; 178fc831825SYuval Mintz 179fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_init; 180fc831825SYuval Mintz p_init = &p_ramrod->iscsi_init_spe; 181fc831825SYuval Mintz p_params = &p_hwfn->pf_params.iscsi_pf_params; 182fc831825SYuval Mintz p_queue = &p_init->q_params; 183fc831825SYuval Mintz 184fc831825SYuval Mintz SET_FIELD(p_init->hdr.flags, 185fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, ISCSI_SLOW_PATH_LAYER_CODE); 186fc831825SYuval Mintz p_init->hdr.op_code = ISCSI_RAMROD_CMD_ID_INIT_FUNC; 187fc831825SYuval Mintz 188fc831825SYuval Mintz val = p_params->half_way_close_timeout; 189fc831825SYuval Mintz p_init->half_way_close_timeout = cpu_to_le16(val); 190fc831825SYuval Mintz p_init->num_sq_pages_in_ring = p_params->num_sq_pages_in_ring; 191fc831825SYuval Mintz p_init->num_r2tq_pages_in_ring = p_params->num_r2tq_pages_in_ring; 192fc831825SYuval Mintz p_init->num_uhq_pages_in_ring = p_params->num_uhq_pages_in_ring; 1936b116b1dSMintz, Yuval p_init->ooo_enable = p_params->ooo_enable; 1946b116b1dSMintz, Yuval p_init->ll2_rx_queue_id = p_hwfn->hw_info.resc_start[QED_LL2_QUEUE] + 1956b116b1dSMintz, Yuval p_params->ll2_ooo_queue_id; 196fc831825SYuval Mintz p_init->func_params.log_page_size = p_params->log_page_size; 197fc831825SYuval Mintz val = p_params->num_tasks; 198fc831825SYuval Mintz p_init->func_params.num_tasks = cpu_to_le16(val); 199fc831825SYuval Mintz p_init->debug_mode.flags = p_params->debug_mode; 200fc831825SYuval Mintz 201fc831825SYuval Mintz DMA_REGPAIR_LE(p_queue->glbl_q_params_addr, 202fc831825SYuval Mintz p_params->glbl_q_params_addr); 203fc831825SYuval Mintz 204fc831825SYuval Mintz val = p_params->cq_num_entries; 205fc831825SYuval Mintz p_queue->cq_num_entries = cpu_to_le16(val); 206fc831825SYuval Mintz val = p_params->cmdq_num_entries; 207fc831825SYuval Mintz p_queue->cmdq_num_entries = cpu_to_le16(val); 208fc831825SYuval Mintz p_queue->num_queues = p_params->num_queues; 209fc831825SYuval Mintz dval = (u8)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS]; 210fc831825SYuval Mintz p_queue->queue_relative_offset = (u8)dval; 211fc831825SYuval Mintz p_queue->cq_sb_pi = p_params->gl_rq_pi; 212fc831825SYuval Mintz p_queue->cmdq_sb_pi = p_params->gl_cmd_pi; 213fc831825SYuval Mintz 214fc831825SYuval Mintz for (i = 0; i < p_params->num_queues; i++) { 215fc831825SYuval Mintz val = p_hwfn->sbs_info[i]->igu_sb_id; 216fc831825SYuval Mintz p_queue->cq_cmdq_sb_num_arr[i] = cpu_to_le16(val); 217fc831825SYuval Mintz } 218fc831825SYuval Mintz 219d0d40a73SMintz, Yuval p_queue->bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ); 220fc831825SYuval Mintz 221fc831825SYuval Mintz DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_RQ], 222fc831825SYuval Mintz p_params->bdq_pbl_base_addr[BDQ_ID_RQ]); 223fc831825SYuval Mintz p_queue->bdq_pbl_num_entries[BDQ_ID_RQ] = 224fc831825SYuval Mintz p_params->bdq_pbl_num_entries[BDQ_ID_RQ]; 225fc831825SYuval Mintz val = p_params->bdq_xoff_threshold[BDQ_ID_RQ]; 226fc831825SYuval Mintz p_queue->bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(val); 227fc831825SYuval Mintz val = p_params->bdq_xon_threshold[BDQ_ID_RQ]; 228fc831825SYuval Mintz p_queue->bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(val); 229fc831825SYuval Mintz 230fc831825SYuval Mintz DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_IMM_DATA], 231fc831825SYuval Mintz p_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]); 232fc831825SYuval Mintz p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA] = 233fc831825SYuval Mintz p_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA]; 234fc831825SYuval Mintz val = p_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA]; 235fc831825SYuval Mintz p_queue->bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val); 236fc831825SYuval Mintz val = p_params->bdq_xon_threshold[BDQ_ID_IMM_DATA]; 237fc831825SYuval Mintz p_queue->bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val); 238fc831825SYuval Mintz val = p_params->rq_buffer_size; 239fc831825SYuval Mintz p_queue->rq_buffer_size = cpu_to_le16(val); 240fc831825SYuval Mintz if (p_params->is_target) { 241fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 242fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1); 243fc831825SYuval Mintz if (p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA]) 244fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 245fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1); 246fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 247fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1); 248fc831825SYuval Mintz } else { 249fc831825SYuval Mintz SET_FIELD(p_queue->q_validity, 250fc831825SYuval Mintz SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1); 251fc831825SYuval Mintz } 252fc831825SYuval Mintz p_ramrod->tcp_init.two_msl_timer = cpu_to_le32(p_params->two_msl_timer); 253fc831825SYuval Mintz val = p_params->tx_sws_timer; 254fc831825SYuval Mintz p_ramrod->tcp_init.tx_sws_timer = cpu_to_le16(val); 255fc831825SYuval Mintz p_ramrod->tcp_init.maxfinrt = p_params->max_fin_rt; 256fc831825SYuval Mintz 257fc831825SYuval Mintz p_hwfn->p_iscsi_info->event_context = event_context; 258fc831825SYuval Mintz p_hwfn->p_iscsi_info->event_cb = async_event_cb; 259fc831825SYuval Mintz 260fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 261fc831825SYuval Mintz } 262fc831825SYuval Mintz 263fc831825SYuval Mintz static int qed_sp_iscsi_conn_offload(struct qed_hwfn *p_hwfn, 264fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 265fc831825SYuval Mintz enum spq_mode comp_mode, 266fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 267fc831825SYuval Mintz { 268fc831825SYuval Mintz struct iscsi_spe_conn_offload *p_ramrod = NULL; 269fc831825SYuval Mintz struct tcp_offload_params_opt2 *p_tcp2 = NULL; 270fc831825SYuval Mintz struct tcp_offload_params *p_tcp = NULL; 271fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 272fc831825SYuval Mintz struct qed_sp_init_data init_data; 273fc831825SYuval Mintz union qed_qm_pq_params pq_params; 274fc831825SYuval Mintz u16 pq0_id = 0, pq1_id = 0; 275fc831825SYuval Mintz dma_addr_t r2tq_pbl_addr; 276fc831825SYuval Mintz dma_addr_t xhq_pbl_addr; 277fc831825SYuval Mintz dma_addr_t uhq_pbl_addr; 278fc831825SYuval Mintz int rc = 0; 279fc831825SYuval Mintz u32 dval; 280fc831825SYuval Mintz u16 wval; 281fc831825SYuval Mintz u8 i; 282fc831825SYuval Mintz u16 *p; 283fc831825SYuval Mintz 284fc831825SYuval Mintz /* Get SPQ entry */ 285fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 286fc831825SYuval Mintz init_data.cid = p_conn->icid; 287fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 288fc831825SYuval Mintz init_data.comp_mode = comp_mode; 289fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 290fc831825SYuval Mintz 291fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 292fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN, 293fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 294fc831825SYuval Mintz if (rc) 295fc831825SYuval Mintz return rc; 296fc831825SYuval Mintz 297fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_conn_offload; 298fc831825SYuval Mintz 299fc831825SYuval Mintz /* Transmission PQ is the first of the PF */ 300fc831825SYuval Mintz memset(&pq_params, 0, sizeof(pq_params)); 301fc831825SYuval Mintz pq0_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params); 302fc831825SYuval Mintz p_conn->physical_q0 = cpu_to_le16(pq0_id); 303fc831825SYuval Mintz p_ramrod->iscsi.physical_q0 = cpu_to_le16(pq0_id); 304fc831825SYuval Mintz 305fc831825SYuval Mintz /* iSCSI Pure-ACK PQ */ 306fc831825SYuval Mintz pq_params.iscsi.q_idx = 1; 307fc831825SYuval Mintz pq1_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_ISCSI, &pq_params); 308fc831825SYuval Mintz p_conn->physical_q1 = cpu_to_le16(pq1_id); 309fc831825SYuval Mintz p_ramrod->iscsi.physical_q1 = cpu_to_le16(pq1_id); 310fc831825SYuval Mintz 311fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN; 312fc831825SYuval Mintz SET_FIELD(p_ramrod->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE, 313fc831825SYuval Mintz p_conn->layer_code); 314fc831825SYuval Mintz 315fc831825SYuval Mintz p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); 316fc831825SYuval Mintz p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); 317fc831825SYuval Mintz 318fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.sq_pbl_addr, p_conn->sq_pbl_addr); 319fc831825SYuval Mintz 320fc831825SYuval Mintz r2tq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->r2tq); 321fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.r2tq_pbl_addr, r2tq_pbl_addr); 322fc831825SYuval Mintz 323fc831825SYuval Mintz xhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->xhq); 324fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.xhq_pbl_addr, xhq_pbl_addr); 325fc831825SYuval Mintz 326fc831825SYuval Mintz uhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->uhq); 327fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->iscsi.uhq_pbl_addr, uhq_pbl_addr); 328fc831825SYuval Mintz 329fc831825SYuval Mintz p_ramrod->iscsi.initial_ack = cpu_to_le32(p_conn->initial_ack); 330fc831825SYuval Mintz p_ramrod->iscsi.flags = p_conn->offl_flags; 331fc831825SYuval Mintz p_ramrod->iscsi.default_cq = p_conn->default_cq; 332fc831825SYuval Mintz p_ramrod->iscsi.stat_sn = cpu_to_le32(p_conn->stat_sn); 333fc831825SYuval Mintz 334fc831825SYuval Mintz if (!GET_FIELD(p_ramrod->iscsi.flags, 335fc831825SYuval Mintz ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B)) { 336fc831825SYuval Mintz p_tcp = &p_ramrod->tcp; 337fc831825SYuval Mintz 338fc831825SYuval Mintz p = (u16 *)p_conn->local_mac; 339fc831825SYuval Mintz p_tcp->local_mac_addr_hi = swab16(get_unaligned(p)); 340fc831825SYuval Mintz p_tcp->local_mac_addr_mid = swab16(get_unaligned(p + 1)); 341fc831825SYuval Mintz p_tcp->local_mac_addr_lo = swab16(get_unaligned(p + 2)); 342fc831825SYuval Mintz 343fc831825SYuval Mintz p = (u16 *)p_conn->remote_mac; 344fc831825SYuval Mintz p_tcp->remote_mac_addr_hi = swab16(get_unaligned(p)); 345fc831825SYuval Mintz p_tcp->remote_mac_addr_mid = swab16(get_unaligned(p + 1)); 346fc831825SYuval Mintz p_tcp->remote_mac_addr_lo = swab16(get_unaligned(p + 2)); 347fc831825SYuval Mintz 348fc831825SYuval Mintz p_tcp->vlan_id = cpu_to_le16(p_conn->vlan_id); 349fc831825SYuval Mintz 350fc831825SYuval Mintz p_tcp->flags = p_conn->tcp_flags; 351fc831825SYuval Mintz p_tcp->ip_version = p_conn->ip_version; 352fc831825SYuval Mintz for (i = 0; i < 4; i++) { 353fc831825SYuval Mintz dval = p_conn->remote_ip[i]; 354fc831825SYuval Mintz p_tcp->remote_ip[i] = cpu_to_le32(dval); 355fc831825SYuval Mintz dval = p_conn->local_ip[i]; 356fc831825SYuval Mintz p_tcp->local_ip[i] = cpu_to_le32(dval); 357fc831825SYuval Mintz } 358fc831825SYuval Mintz p_tcp->ka_max_probe_cnt = p_conn->ka_max_probe_cnt; 359fc831825SYuval Mintz p_tcp->dup_ack_theshold = p_conn->dup_ack_theshold; 360fc831825SYuval Mintz 361fc831825SYuval Mintz p_tcp->rcv_next = cpu_to_le32(p_conn->rcv_next); 362fc831825SYuval Mintz p_tcp->snd_una = cpu_to_le32(p_conn->snd_una); 363fc831825SYuval Mintz p_tcp->snd_next = cpu_to_le32(p_conn->snd_next); 364fc831825SYuval Mintz p_tcp->snd_max = cpu_to_le32(p_conn->snd_max); 365fc831825SYuval Mintz p_tcp->snd_wnd = cpu_to_le32(p_conn->snd_wnd); 366fc831825SYuval Mintz p_tcp->rcv_wnd = cpu_to_le32(p_conn->rcv_wnd); 367fc831825SYuval Mintz p_tcp->snd_wl1 = cpu_to_le32(p_conn->snd_wl1); 368fc831825SYuval Mintz p_tcp->cwnd = cpu_to_le32(p_conn->cwnd); 369fc831825SYuval Mintz p_tcp->ss_thresh = cpu_to_le32(p_conn->ss_thresh); 370fc831825SYuval Mintz p_tcp->srtt = cpu_to_le16(p_conn->srtt); 371fc831825SYuval Mintz p_tcp->rtt_var = cpu_to_le16(p_conn->rtt_var); 372fc831825SYuval Mintz p_tcp->ts_time = cpu_to_le32(p_conn->ts_time); 373fc831825SYuval Mintz p_tcp->ts_recent = cpu_to_le32(p_conn->ts_recent); 374fc831825SYuval Mintz p_tcp->ts_recent_age = cpu_to_le32(p_conn->ts_recent_age); 375fc831825SYuval Mintz p_tcp->total_rt = cpu_to_le32(p_conn->total_rt); 376fc831825SYuval Mintz dval = p_conn->ka_timeout_delta; 377fc831825SYuval Mintz p_tcp->ka_timeout_delta = cpu_to_le32(dval); 378fc831825SYuval Mintz dval = p_conn->rt_timeout_delta; 379fc831825SYuval Mintz p_tcp->rt_timeout_delta = cpu_to_le32(dval); 380fc831825SYuval Mintz p_tcp->dup_ack_cnt = p_conn->dup_ack_cnt; 381fc831825SYuval Mintz p_tcp->snd_wnd_probe_cnt = p_conn->snd_wnd_probe_cnt; 382fc831825SYuval Mintz p_tcp->ka_probe_cnt = p_conn->ka_probe_cnt; 383fc831825SYuval Mintz p_tcp->rt_cnt = p_conn->rt_cnt; 384fc831825SYuval Mintz p_tcp->flow_label = cpu_to_le32(p_conn->flow_label); 385fc831825SYuval Mintz p_tcp->ka_timeout = cpu_to_le32(p_conn->ka_timeout); 386fc831825SYuval Mintz p_tcp->ka_interval = cpu_to_le32(p_conn->ka_interval); 387fc831825SYuval Mintz p_tcp->max_rt_time = cpu_to_le32(p_conn->max_rt_time); 388fc831825SYuval Mintz dval = p_conn->initial_rcv_wnd; 389fc831825SYuval Mintz p_tcp->initial_rcv_wnd = cpu_to_le32(dval); 390fc831825SYuval Mintz p_tcp->ttl = p_conn->ttl; 391fc831825SYuval Mintz p_tcp->tos_or_tc = p_conn->tos_or_tc; 392fc831825SYuval Mintz p_tcp->remote_port = cpu_to_le16(p_conn->remote_port); 393fc831825SYuval Mintz p_tcp->local_port = cpu_to_le16(p_conn->local_port); 394fc831825SYuval Mintz p_tcp->mss = cpu_to_le16(p_conn->mss); 395fc831825SYuval Mintz p_tcp->snd_wnd_scale = p_conn->snd_wnd_scale; 396fc831825SYuval Mintz p_tcp->rcv_wnd_scale = p_conn->rcv_wnd_scale; 397fc831825SYuval Mintz dval = p_conn->ts_ticks_per_second; 398fc831825SYuval Mintz p_tcp->ts_ticks_per_second = cpu_to_le32(dval); 399fc831825SYuval Mintz wval = p_conn->da_timeout_value; 400fc831825SYuval Mintz p_tcp->da_timeout_value = cpu_to_le16(wval); 401fc831825SYuval Mintz p_tcp->ack_frequency = p_conn->ack_frequency; 402fc831825SYuval Mintz p_tcp->connect_mode = p_conn->connect_mode; 403fc831825SYuval Mintz } else { 404fc831825SYuval Mintz p_tcp2 = 405fc831825SYuval Mintz &((struct iscsi_spe_conn_offload_option2 *)p_ramrod)->tcp; 406fc831825SYuval Mintz 407fc831825SYuval Mintz p = (u16 *)p_conn->local_mac; 408fc831825SYuval Mintz p_tcp2->local_mac_addr_hi = swab16(get_unaligned(p)); 409fc831825SYuval Mintz p_tcp2->local_mac_addr_mid = swab16(get_unaligned(p + 1)); 410fc831825SYuval Mintz p_tcp2->local_mac_addr_lo = swab16(get_unaligned(p + 2)); 411fc831825SYuval Mintz 412fc831825SYuval Mintz p = (u16 *)p_conn->remote_mac; 413fc831825SYuval Mintz p_tcp2->remote_mac_addr_hi = swab16(get_unaligned(p)); 414fc831825SYuval Mintz p_tcp2->remote_mac_addr_mid = swab16(get_unaligned(p + 1)); 415fc831825SYuval Mintz p_tcp2->remote_mac_addr_lo = swab16(get_unaligned(p + 2)); 416fc831825SYuval Mintz 417fc831825SYuval Mintz p_tcp2->vlan_id = cpu_to_le16(p_conn->vlan_id); 418fc831825SYuval Mintz p_tcp2->flags = p_conn->tcp_flags; 419fc831825SYuval Mintz 420fc831825SYuval Mintz p_tcp2->ip_version = p_conn->ip_version; 421fc831825SYuval Mintz for (i = 0; i < 4; i++) { 422fc831825SYuval Mintz dval = p_conn->remote_ip[i]; 423fc831825SYuval Mintz p_tcp2->remote_ip[i] = cpu_to_le32(dval); 424fc831825SYuval Mintz dval = p_conn->local_ip[i]; 425fc831825SYuval Mintz p_tcp2->local_ip[i] = cpu_to_le32(dval); 426fc831825SYuval Mintz } 427fc831825SYuval Mintz 428fc831825SYuval Mintz p_tcp2->flow_label = cpu_to_le32(p_conn->flow_label); 429fc831825SYuval Mintz p_tcp2->ttl = p_conn->ttl; 430fc831825SYuval Mintz p_tcp2->tos_or_tc = p_conn->tos_or_tc; 431fc831825SYuval Mintz p_tcp2->remote_port = cpu_to_le16(p_conn->remote_port); 432fc831825SYuval Mintz p_tcp2->local_port = cpu_to_le16(p_conn->local_port); 433fc831825SYuval Mintz p_tcp2->mss = cpu_to_le16(p_conn->mss); 434fc831825SYuval Mintz p_tcp2->rcv_wnd_scale = p_conn->rcv_wnd_scale; 435fc831825SYuval Mintz p_tcp2->connect_mode = p_conn->connect_mode; 436fc831825SYuval Mintz wval = p_conn->syn_ip_payload_length; 437fc831825SYuval Mintz p_tcp2->syn_ip_payload_length = cpu_to_le16(wval); 438fc831825SYuval Mintz p_tcp2->syn_phy_addr_lo = DMA_LO_LE(p_conn->syn_phy_addr); 439fc831825SYuval Mintz p_tcp2->syn_phy_addr_hi = DMA_HI_LE(p_conn->syn_phy_addr); 440fc831825SYuval Mintz } 441fc831825SYuval Mintz 442fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 443fc831825SYuval Mintz } 444fc831825SYuval Mintz 445fc831825SYuval Mintz static int qed_sp_iscsi_conn_update(struct qed_hwfn *p_hwfn, 446fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 447fc831825SYuval Mintz enum spq_mode comp_mode, 448fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 449fc831825SYuval Mintz { 450fc831825SYuval Mintz struct iscsi_conn_update_ramrod_params *p_ramrod = NULL; 451fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 452fc831825SYuval Mintz struct qed_sp_init_data init_data; 453fc831825SYuval Mintz int rc = -EINVAL; 454fc831825SYuval Mintz u32 dval; 455fc831825SYuval Mintz 456fc831825SYuval Mintz /* Get SPQ entry */ 457fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 458fc831825SYuval Mintz init_data.cid = p_conn->icid; 459fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 460fc831825SYuval Mintz init_data.comp_mode = comp_mode; 461fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 462fc831825SYuval Mintz 463fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 464fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_UPDATE_CONN, 465fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 466fc831825SYuval Mintz if (rc) 467fc831825SYuval Mintz return rc; 468fc831825SYuval Mintz 469fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_conn_update; 470fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_UPDATE_CONN; 471fc831825SYuval Mintz SET_FIELD(p_ramrod->hdr.flags, 472fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); 473fc831825SYuval Mintz 474fc831825SYuval Mintz p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); 475fc831825SYuval Mintz p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); 476fc831825SYuval Mintz p_ramrod->flags = p_conn->update_flag; 477fc831825SYuval Mintz p_ramrod->max_seq_size = cpu_to_le32(p_conn->max_seq_size); 478fc831825SYuval Mintz dval = p_conn->max_recv_pdu_length; 479fc831825SYuval Mintz p_ramrod->max_recv_pdu_length = cpu_to_le32(dval); 480fc831825SYuval Mintz dval = p_conn->max_send_pdu_length; 481fc831825SYuval Mintz p_ramrod->max_send_pdu_length = cpu_to_le32(dval); 482fc831825SYuval Mintz dval = p_conn->first_seq_length; 483fc831825SYuval Mintz p_ramrod->first_seq_length = cpu_to_le32(dval); 484fc831825SYuval Mintz p_ramrod->exp_stat_sn = cpu_to_le32(p_conn->exp_stat_sn); 485fc831825SYuval Mintz 486fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 487fc831825SYuval Mintz } 488fc831825SYuval Mintz 489fc831825SYuval Mintz static int qed_sp_iscsi_conn_terminate(struct qed_hwfn *p_hwfn, 490fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 491fc831825SYuval Mintz enum spq_mode comp_mode, 492fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 493fc831825SYuval Mintz { 494fc831825SYuval Mintz struct iscsi_spe_conn_termination *p_ramrod = NULL; 495fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 496fc831825SYuval Mintz struct qed_sp_init_data init_data; 497fc831825SYuval Mintz int rc = -EINVAL; 498fc831825SYuval Mintz 499fc831825SYuval Mintz /* Get SPQ entry */ 500fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 501fc831825SYuval Mintz init_data.cid = p_conn->icid; 502fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 503fc831825SYuval Mintz init_data.comp_mode = comp_mode; 504fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 505fc831825SYuval Mintz 506fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 507fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_TERMINATION_CONN, 508fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 509fc831825SYuval Mintz if (rc) 510fc831825SYuval Mintz return rc; 511fc831825SYuval Mintz 512fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_conn_terminate; 513fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_TERMINATION_CONN; 514fc831825SYuval Mintz SET_FIELD(p_ramrod->hdr.flags, 515fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); 516fc831825SYuval Mintz 517fc831825SYuval Mintz p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); 518fc831825SYuval Mintz p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); 519fc831825SYuval Mintz p_ramrod->abortive = p_conn->abortive_dsconnect; 520fc831825SYuval Mintz 521fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->query_params_addr, 522fc831825SYuval Mintz p_conn->tcp_upload_params_phys_addr); 523fc831825SYuval Mintz DMA_REGPAIR_LE(p_ramrod->queue_cnts_addr, p_conn->queue_cnts_phys_addr); 524fc831825SYuval Mintz 525fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 526fc831825SYuval Mintz } 527fc831825SYuval Mintz 528fc831825SYuval Mintz static int qed_sp_iscsi_conn_clear_sq(struct qed_hwfn *p_hwfn, 529fc831825SYuval Mintz struct qed_iscsi_conn *p_conn, 530fc831825SYuval Mintz enum spq_mode comp_mode, 531fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 532fc831825SYuval Mintz { 533fc831825SYuval Mintz struct iscsi_slow_path_hdr *p_ramrod = NULL; 534fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 535fc831825SYuval Mintz struct qed_sp_init_data init_data; 536fc831825SYuval Mintz int rc = -EINVAL; 537fc831825SYuval Mintz 538fc831825SYuval Mintz /* Get SPQ entry */ 539fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 540fc831825SYuval Mintz init_data.cid = p_conn->icid; 541fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 542fc831825SYuval Mintz init_data.comp_mode = comp_mode; 543fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 544fc831825SYuval Mintz 545fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 546fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_CLEAR_SQ, 547fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 548fc831825SYuval Mintz if (rc) 549fc831825SYuval Mintz return rc; 550fc831825SYuval Mintz 551fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_empty; 552fc831825SYuval Mintz p_ramrod->op_code = ISCSI_RAMROD_CMD_ID_CLEAR_SQ; 553fc831825SYuval Mintz SET_FIELD(p_ramrod->flags, 554fc831825SYuval Mintz ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); 555fc831825SYuval Mintz 556fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 557fc831825SYuval Mintz } 558fc831825SYuval Mintz 559fc831825SYuval Mintz static int qed_sp_iscsi_func_stop(struct qed_hwfn *p_hwfn, 560fc831825SYuval Mintz enum spq_mode comp_mode, 561fc831825SYuval Mintz struct qed_spq_comp_cb *p_comp_addr) 562fc831825SYuval Mintz { 563fc831825SYuval Mintz struct iscsi_spe_func_dstry *p_ramrod = NULL; 564fc831825SYuval Mintz struct qed_spq_entry *p_ent = NULL; 565fc831825SYuval Mintz struct qed_sp_init_data init_data; 566fc831825SYuval Mintz int rc = 0; 567fc831825SYuval Mintz 568fc831825SYuval Mintz /* Get SPQ entry */ 569fc831825SYuval Mintz memset(&init_data, 0, sizeof(init_data)); 570fc831825SYuval Mintz init_data.cid = qed_spq_get_cid(p_hwfn); 571fc831825SYuval Mintz init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 572fc831825SYuval Mintz init_data.comp_mode = comp_mode; 573fc831825SYuval Mintz init_data.p_comp_data = p_comp_addr; 574fc831825SYuval Mintz 575fc831825SYuval Mintz rc = qed_sp_init_request(p_hwfn, &p_ent, 576fc831825SYuval Mintz ISCSI_RAMROD_CMD_ID_DESTROY_FUNC, 577fc831825SYuval Mintz PROTOCOLID_ISCSI, &init_data); 578fc831825SYuval Mintz if (rc) 579fc831825SYuval Mintz return rc; 580fc831825SYuval Mintz 581fc831825SYuval Mintz p_ramrod = &p_ent->ramrod.iscsi_destroy; 582fc831825SYuval Mintz p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_DESTROY_FUNC; 583fc831825SYuval Mintz 584fc831825SYuval Mintz return qed_spq_post(p_hwfn, p_ent, NULL); 585fc831825SYuval Mintz } 586fc831825SYuval Mintz 587fc831825SYuval Mintz static void __iomem *qed_iscsi_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid) 588fc831825SYuval Mintz { 589fc831825SYuval Mintz return (u8 __iomem *)p_hwfn->doorbells + 590fc831825SYuval Mintz qed_db_addr(cid, DQ_DEMS_LEGACY); 591fc831825SYuval Mintz } 592fc831825SYuval Mintz 593fc831825SYuval Mintz static void __iomem *qed_iscsi_get_primary_bdq_prod(struct qed_hwfn *p_hwfn, 594fc831825SYuval Mintz u8 bdq_id) 595fc831825SYuval Mintz { 596d0d40a73SMintz, Yuval if (RESC_NUM(p_hwfn, QED_BDQ)) { 597d0d40a73SMintz, Yuval return (u8 __iomem *)p_hwfn->regview + 598d0d40a73SMintz, Yuval GTT_BAR0_MAP_REG_MSDM_RAM + 599d0d40a73SMintz, Yuval MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn, 600d0d40a73SMintz, Yuval QED_BDQ), 601fc831825SYuval Mintz bdq_id); 602d0d40a73SMintz, Yuval } else { 603d0d40a73SMintz, Yuval DP_NOTICE(p_hwfn, "BDQ is not allocated!\n"); 604d0d40a73SMintz, Yuval return NULL; 605d0d40a73SMintz, Yuval } 606fc831825SYuval Mintz } 607fc831825SYuval Mintz 608fc831825SYuval Mintz static void __iomem *qed_iscsi_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn, 609fc831825SYuval Mintz u8 bdq_id) 610fc831825SYuval Mintz { 611d0d40a73SMintz, Yuval if (RESC_NUM(p_hwfn, QED_BDQ)) { 612d0d40a73SMintz, Yuval return (u8 __iomem *)p_hwfn->regview + 613d0d40a73SMintz, Yuval GTT_BAR0_MAP_REG_TSDM_RAM + 614d0d40a73SMintz, Yuval TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn, 615d0d40a73SMintz, Yuval QED_BDQ), 616fc831825SYuval Mintz bdq_id); 617d0d40a73SMintz, Yuval } else { 618d0d40a73SMintz, Yuval DP_NOTICE(p_hwfn, "BDQ is not allocated!\n"); 619d0d40a73SMintz, Yuval return NULL; 620d0d40a73SMintz, Yuval } 621fc831825SYuval Mintz } 622fc831825SYuval Mintz 623fc831825SYuval Mintz static int qed_iscsi_setup_connection(struct qed_hwfn *p_hwfn, 624fc831825SYuval Mintz struct qed_iscsi_conn *p_conn) 625fc831825SYuval Mintz { 626fc831825SYuval Mintz if (!p_conn->queue_cnts_virt_addr) 627fc831825SYuval Mintz goto nomem; 628fc831825SYuval Mintz memset(p_conn->queue_cnts_virt_addr, 0, 629fc831825SYuval Mintz sizeof(*p_conn->queue_cnts_virt_addr)); 630fc831825SYuval Mintz 631fc831825SYuval Mintz if (!p_conn->tcp_upload_params_virt_addr) 632fc831825SYuval Mintz goto nomem; 633fc831825SYuval Mintz memset(p_conn->tcp_upload_params_virt_addr, 0, 634fc831825SYuval Mintz sizeof(*p_conn->tcp_upload_params_virt_addr)); 635fc831825SYuval Mintz 636fc831825SYuval Mintz if (!p_conn->r2tq.p_virt_addr) 637fc831825SYuval Mintz goto nomem; 638fc831825SYuval Mintz qed_chain_pbl_zero_mem(&p_conn->r2tq); 639fc831825SYuval Mintz 640fc831825SYuval Mintz if (!p_conn->uhq.p_virt_addr) 641fc831825SYuval Mintz goto nomem; 642fc831825SYuval Mintz qed_chain_pbl_zero_mem(&p_conn->uhq); 643fc831825SYuval Mintz 644fc831825SYuval Mintz if (!p_conn->xhq.p_virt_addr) 645fc831825SYuval Mintz goto nomem; 646fc831825SYuval Mintz qed_chain_pbl_zero_mem(&p_conn->xhq); 647fc831825SYuval Mintz 648fc831825SYuval Mintz return 0; 649fc831825SYuval Mintz nomem: 650fc831825SYuval Mintz return -ENOMEM; 651fc831825SYuval Mintz } 652fc831825SYuval Mintz 653fc831825SYuval Mintz static int qed_iscsi_allocate_connection(struct qed_hwfn *p_hwfn, 654fc831825SYuval Mintz struct qed_iscsi_conn **p_out_conn) 655fc831825SYuval Mintz { 656fc831825SYuval Mintz u16 uhq_num_elements = 0, xhq_num_elements = 0, r2tq_num_elements = 0; 657fc831825SYuval Mintz struct scsi_terminate_extra_params *p_q_cnts = NULL; 658fc831825SYuval Mintz struct qed_iscsi_pf_params *p_params = NULL; 659fc831825SYuval Mintz struct tcp_upload_params *p_tcp = NULL; 660fc831825SYuval Mintz struct qed_iscsi_conn *p_conn = NULL; 661fc831825SYuval Mintz int rc = 0; 662fc831825SYuval Mintz 663fc831825SYuval Mintz /* Try finding a free connection that can be used */ 664fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 665fc831825SYuval Mintz if (!list_empty(&p_hwfn->p_iscsi_info->free_list)) 666fc831825SYuval Mintz p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list, 667fc831825SYuval Mintz struct qed_iscsi_conn, list_entry); 668fc831825SYuval Mintz if (p_conn) { 669fc831825SYuval Mintz list_del(&p_conn->list_entry); 670fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 671fc831825SYuval Mintz *p_out_conn = p_conn; 672fc831825SYuval Mintz return 0; 673fc831825SYuval Mintz } 674fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 675fc831825SYuval Mintz 676fc831825SYuval Mintz /* Need to allocate a new connection */ 677fc831825SYuval Mintz p_params = &p_hwfn->pf_params.iscsi_pf_params; 678fc831825SYuval Mintz 679fc831825SYuval Mintz p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL); 680fc831825SYuval Mintz if (!p_conn) 681fc831825SYuval Mintz return -ENOMEM; 682fc831825SYuval Mintz 683fc831825SYuval Mintz p_q_cnts = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 684fc831825SYuval Mintz sizeof(*p_q_cnts), 685fc831825SYuval Mintz &p_conn->queue_cnts_phys_addr, 686fc831825SYuval Mintz GFP_KERNEL); 687fc831825SYuval Mintz if (!p_q_cnts) 688fc831825SYuval Mintz goto nomem_queue_cnts_param; 689fc831825SYuval Mintz p_conn->queue_cnts_virt_addr = p_q_cnts; 690fc831825SYuval Mintz 691fc831825SYuval Mintz p_tcp = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 692fc831825SYuval Mintz sizeof(*p_tcp), 693fc831825SYuval Mintz &p_conn->tcp_upload_params_phys_addr, 694fc831825SYuval Mintz GFP_KERNEL); 695fc831825SYuval Mintz if (!p_tcp) 696fc831825SYuval Mintz goto nomem_upload_param; 697fc831825SYuval Mintz p_conn->tcp_upload_params_virt_addr = p_tcp; 698fc831825SYuval Mintz 699fc831825SYuval Mintz r2tq_num_elements = p_params->num_r2tq_pages_in_ring * 700fc831825SYuval Mintz QED_CHAIN_PAGE_SIZE / 0x80; 701fc831825SYuval Mintz rc = qed_chain_alloc(p_hwfn->cdev, 702fc831825SYuval Mintz QED_CHAIN_USE_TO_CONSUME_PRODUCE, 703fc831825SYuval Mintz QED_CHAIN_MODE_PBL, 704fc831825SYuval Mintz QED_CHAIN_CNT_TYPE_U16, 705fc831825SYuval Mintz r2tq_num_elements, 0x80, &p_conn->r2tq); 706fc831825SYuval Mintz if (rc) 707fc831825SYuval Mintz goto nomem_r2tq; 708fc831825SYuval Mintz 709fc831825SYuval Mintz uhq_num_elements = p_params->num_uhq_pages_in_ring * 710fc831825SYuval Mintz QED_CHAIN_PAGE_SIZE / sizeof(struct iscsi_uhqe); 711fc831825SYuval Mintz rc = qed_chain_alloc(p_hwfn->cdev, 712fc831825SYuval Mintz QED_CHAIN_USE_TO_CONSUME_PRODUCE, 713fc831825SYuval Mintz QED_CHAIN_MODE_PBL, 714fc831825SYuval Mintz QED_CHAIN_CNT_TYPE_U16, 715fc831825SYuval Mintz uhq_num_elements, 716fc831825SYuval Mintz sizeof(struct iscsi_uhqe), &p_conn->uhq); 717fc831825SYuval Mintz if (rc) 718fc831825SYuval Mintz goto nomem_uhq; 719fc831825SYuval Mintz 720fc831825SYuval Mintz xhq_num_elements = uhq_num_elements; 721fc831825SYuval Mintz rc = qed_chain_alloc(p_hwfn->cdev, 722fc831825SYuval Mintz QED_CHAIN_USE_TO_CONSUME_PRODUCE, 723fc831825SYuval Mintz QED_CHAIN_MODE_PBL, 724fc831825SYuval Mintz QED_CHAIN_CNT_TYPE_U16, 725fc831825SYuval Mintz xhq_num_elements, 726fc831825SYuval Mintz sizeof(struct iscsi_xhqe), &p_conn->xhq); 727fc831825SYuval Mintz if (rc) 728fc831825SYuval Mintz goto nomem; 729fc831825SYuval Mintz 730fc831825SYuval Mintz p_conn->free_on_delete = true; 731fc831825SYuval Mintz *p_out_conn = p_conn; 732fc831825SYuval Mintz return 0; 733fc831825SYuval Mintz 734fc831825SYuval Mintz nomem: 735fc831825SYuval Mintz qed_chain_free(p_hwfn->cdev, &p_conn->uhq); 736fc831825SYuval Mintz nomem_uhq: 737fc831825SYuval Mintz qed_chain_free(p_hwfn->cdev, &p_conn->r2tq); 738fc831825SYuval Mintz nomem_r2tq: 739fc831825SYuval Mintz dma_free_coherent(&p_hwfn->cdev->pdev->dev, 740fc831825SYuval Mintz sizeof(struct tcp_upload_params), 741fc831825SYuval Mintz p_conn->tcp_upload_params_virt_addr, 742fc831825SYuval Mintz p_conn->tcp_upload_params_phys_addr); 743fc831825SYuval Mintz nomem_upload_param: 744fc831825SYuval Mintz dma_free_coherent(&p_hwfn->cdev->pdev->dev, 745fc831825SYuval Mintz sizeof(struct scsi_terminate_extra_params), 746fc831825SYuval Mintz p_conn->queue_cnts_virt_addr, 747fc831825SYuval Mintz p_conn->queue_cnts_phys_addr); 748fc831825SYuval Mintz nomem_queue_cnts_param: 749fc831825SYuval Mintz kfree(p_conn); 750fc831825SYuval Mintz 751fc831825SYuval Mintz return -ENOMEM; 752fc831825SYuval Mintz } 753fc831825SYuval Mintz 754fc831825SYuval Mintz static int qed_iscsi_acquire_connection(struct qed_hwfn *p_hwfn, 755fc831825SYuval Mintz struct qed_iscsi_conn *p_in_conn, 756fc831825SYuval Mintz struct qed_iscsi_conn **p_out_conn) 757fc831825SYuval Mintz { 758fc831825SYuval Mintz struct qed_iscsi_conn *p_conn = NULL; 759fc831825SYuval Mintz int rc = 0; 760fc831825SYuval Mintz u32 icid; 761fc831825SYuval Mintz 762fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 763fc831825SYuval Mintz rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_ISCSI, &icid); 764fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 765fc831825SYuval Mintz if (rc) 766fc831825SYuval Mintz return rc; 767fc831825SYuval Mintz 768fc831825SYuval Mintz /* Use input connection or allocate a new one */ 769fc831825SYuval Mintz if (p_in_conn) 770fc831825SYuval Mintz p_conn = p_in_conn; 771fc831825SYuval Mintz else 772fc831825SYuval Mintz rc = qed_iscsi_allocate_connection(p_hwfn, &p_conn); 773fc831825SYuval Mintz 774fc831825SYuval Mintz if (!rc) 775fc831825SYuval Mintz rc = qed_iscsi_setup_connection(p_hwfn, p_conn); 776fc831825SYuval Mintz 777fc831825SYuval Mintz if (rc) { 778fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 779fc831825SYuval Mintz qed_cxt_release_cid(p_hwfn, icid); 780fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 781fc831825SYuval Mintz return rc; 782fc831825SYuval Mintz } 783fc831825SYuval Mintz 784fc831825SYuval Mintz p_conn->icid = icid; 785fc831825SYuval Mintz p_conn->conn_id = (u16)icid; 786fc831825SYuval Mintz p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid; 787fc831825SYuval Mintz 788fc831825SYuval Mintz *p_out_conn = p_conn; 789fc831825SYuval Mintz 790fc831825SYuval Mintz return rc; 791fc831825SYuval Mintz } 792fc831825SYuval Mintz 793fc831825SYuval Mintz static void qed_iscsi_release_connection(struct qed_hwfn *p_hwfn, 794fc831825SYuval Mintz struct qed_iscsi_conn *p_conn) 795fc831825SYuval Mintz { 796fc831825SYuval Mintz spin_lock_bh(&p_hwfn->p_iscsi_info->lock); 797fc831825SYuval Mintz list_add_tail(&p_conn->list_entry, &p_hwfn->p_iscsi_info->free_list); 798fc831825SYuval Mintz qed_cxt_release_cid(p_hwfn, p_conn->icid); 799fc831825SYuval Mintz spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); 800fc831825SYuval Mintz } 801fc831825SYuval Mintz 8024621ceb2SMintz, Yuval void qed_iscsi_free_connection(struct qed_hwfn *p_hwfn, 8034621ceb2SMintz, Yuval struct qed_iscsi_conn *p_conn) 8044621ceb2SMintz, Yuval { 8054621ceb2SMintz, Yuval qed_chain_free(p_hwfn->cdev, &p_conn->xhq); 8064621ceb2SMintz, Yuval qed_chain_free(p_hwfn->cdev, &p_conn->uhq); 8074621ceb2SMintz, Yuval qed_chain_free(p_hwfn->cdev, &p_conn->r2tq); 8084621ceb2SMintz, Yuval dma_free_coherent(&p_hwfn->cdev->pdev->dev, 8094621ceb2SMintz, Yuval sizeof(struct tcp_upload_params), 8104621ceb2SMintz, Yuval p_conn->tcp_upload_params_virt_addr, 8114621ceb2SMintz, Yuval p_conn->tcp_upload_params_phys_addr); 8124621ceb2SMintz, Yuval dma_free_coherent(&p_hwfn->cdev->pdev->dev, 8134621ceb2SMintz, Yuval sizeof(struct scsi_terminate_extra_params), 8144621ceb2SMintz, Yuval p_conn->queue_cnts_virt_addr, 8154621ceb2SMintz, Yuval p_conn->queue_cnts_phys_addr); 8164621ceb2SMintz, Yuval kfree(p_conn); 8174621ceb2SMintz, Yuval } 8184621ceb2SMintz, Yuval 819fc831825SYuval Mintz struct qed_iscsi_info *qed_iscsi_alloc(struct qed_hwfn *p_hwfn) 820fc831825SYuval Mintz { 821fc831825SYuval Mintz struct qed_iscsi_info *p_iscsi_info; 822fc831825SYuval Mintz 823fc831825SYuval Mintz p_iscsi_info = kzalloc(sizeof(*p_iscsi_info), GFP_KERNEL); 824fc831825SYuval Mintz if (!p_iscsi_info) 825fc831825SYuval Mintz return NULL; 826fc831825SYuval Mintz 827fc831825SYuval Mintz INIT_LIST_HEAD(&p_iscsi_info->free_list); 828fc831825SYuval Mintz return p_iscsi_info; 829fc831825SYuval Mintz } 830fc831825SYuval Mintz 831fc831825SYuval Mintz void qed_iscsi_setup(struct qed_hwfn *p_hwfn, 832fc831825SYuval Mintz struct qed_iscsi_info *p_iscsi_info) 833fc831825SYuval Mintz { 834fc831825SYuval Mintz spin_lock_init(&p_iscsi_info->lock); 835fc831825SYuval Mintz } 836fc831825SYuval Mintz 837fc831825SYuval Mintz void qed_iscsi_free(struct qed_hwfn *p_hwfn, 838fc831825SYuval Mintz struct qed_iscsi_info *p_iscsi_info) 839fc831825SYuval Mintz { 8404621ceb2SMintz, Yuval struct qed_iscsi_conn *p_conn = NULL; 8414621ceb2SMintz, Yuval 8424621ceb2SMintz, Yuval while (!list_empty(&p_hwfn->p_iscsi_info->free_list)) { 8434621ceb2SMintz, Yuval p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list, 8444621ceb2SMintz, Yuval struct qed_iscsi_conn, list_entry); 8454621ceb2SMintz, Yuval if (p_conn) { 8464621ceb2SMintz, Yuval list_del(&p_conn->list_entry); 8474621ceb2SMintz, Yuval qed_iscsi_free_connection(p_hwfn, p_conn); 8484621ceb2SMintz, Yuval } 8494621ceb2SMintz, Yuval } 8504621ceb2SMintz, Yuval 851fc831825SYuval Mintz kfree(p_iscsi_info); 852fc831825SYuval Mintz } 853fc831825SYuval Mintz 854fc831825SYuval Mintz static void _qed_iscsi_get_tstats(struct qed_hwfn *p_hwfn, 855fc831825SYuval Mintz struct qed_ptt *p_ptt, 856fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 857fc831825SYuval Mintz { 858fc831825SYuval Mintz struct tstorm_iscsi_stats_drv tstats; 859fc831825SYuval Mintz u32 tstats_addr; 860fc831825SYuval Mintz 861fc831825SYuval Mintz memset(&tstats, 0, sizeof(tstats)); 862fc831825SYuval Mintz tstats_addr = BAR0_MAP_REG_TSDM_RAM + 863fc831825SYuval Mintz TSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); 864fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats)); 865fc831825SYuval Mintz 866fc831825SYuval Mintz p_stats->iscsi_rx_bytes_cnt = 867fc831825SYuval Mintz HILO_64_REGPAIR(tstats.iscsi_rx_bytes_cnt); 868fc831825SYuval Mintz p_stats->iscsi_rx_packet_cnt = 869fc831825SYuval Mintz HILO_64_REGPAIR(tstats.iscsi_rx_packet_cnt); 870fc831825SYuval Mintz p_stats->iscsi_cmdq_threshold_cnt = 871fc831825SYuval Mintz le32_to_cpu(tstats.iscsi_cmdq_threshold_cnt); 872fc831825SYuval Mintz p_stats->iscsi_rq_threshold_cnt = 873fc831825SYuval Mintz le32_to_cpu(tstats.iscsi_rq_threshold_cnt); 874fc831825SYuval Mintz p_stats->iscsi_immq_threshold_cnt = 875fc831825SYuval Mintz le32_to_cpu(tstats.iscsi_immq_threshold_cnt); 876fc831825SYuval Mintz } 877fc831825SYuval Mintz 878fc831825SYuval Mintz static void _qed_iscsi_get_mstats(struct qed_hwfn *p_hwfn, 879fc831825SYuval Mintz struct qed_ptt *p_ptt, 880fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 881fc831825SYuval Mintz { 882fc831825SYuval Mintz struct mstorm_iscsi_stats_drv mstats; 883fc831825SYuval Mintz u32 mstats_addr; 884fc831825SYuval Mintz 885fc831825SYuval Mintz memset(&mstats, 0, sizeof(mstats)); 886fc831825SYuval Mintz mstats_addr = BAR0_MAP_REG_MSDM_RAM + 887fc831825SYuval Mintz MSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); 888fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &mstats, mstats_addr, sizeof(mstats)); 889fc831825SYuval Mintz 890fc831825SYuval Mintz p_stats->iscsi_rx_dropped_pdus_task_not_valid = 891fc831825SYuval Mintz HILO_64_REGPAIR(mstats.iscsi_rx_dropped_pdus_task_not_valid); 892fc831825SYuval Mintz } 893fc831825SYuval Mintz 894fc831825SYuval Mintz static void _qed_iscsi_get_ustats(struct qed_hwfn *p_hwfn, 895fc831825SYuval Mintz struct qed_ptt *p_ptt, 896fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 897fc831825SYuval Mintz { 898fc831825SYuval Mintz struct ustorm_iscsi_stats_drv ustats; 899fc831825SYuval Mintz u32 ustats_addr; 900fc831825SYuval Mintz 901fc831825SYuval Mintz memset(&ustats, 0, sizeof(ustats)); 902fc831825SYuval Mintz ustats_addr = BAR0_MAP_REG_USDM_RAM + 903fc831825SYuval Mintz USTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); 904fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &ustats, ustats_addr, sizeof(ustats)); 905fc831825SYuval Mintz 906fc831825SYuval Mintz p_stats->iscsi_rx_data_pdu_cnt = 907fc831825SYuval Mintz HILO_64_REGPAIR(ustats.iscsi_rx_data_pdu_cnt); 908fc831825SYuval Mintz p_stats->iscsi_rx_r2t_pdu_cnt = 909fc831825SYuval Mintz HILO_64_REGPAIR(ustats.iscsi_rx_r2t_pdu_cnt); 910fc831825SYuval Mintz p_stats->iscsi_rx_total_pdu_cnt = 911fc831825SYuval Mintz HILO_64_REGPAIR(ustats.iscsi_rx_total_pdu_cnt); 912fc831825SYuval Mintz } 913fc831825SYuval Mintz 914fc831825SYuval Mintz static void _qed_iscsi_get_xstats(struct qed_hwfn *p_hwfn, 915fc831825SYuval Mintz struct qed_ptt *p_ptt, 916fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 917fc831825SYuval Mintz { 918fc831825SYuval Mintz struct xstorm_iscsi_stats_drv xstats; 919fc831825SYuval Mintz u32 xstats_addr; 920fc831825SYuval Mintz 921fc831825SYuval Mintz memset(&xstats, 0, sizeof(xstats)); 922fc831825SYuval Mintz xstats_addr = BAR0_MAP_REG_XSDM_RAM + 923fc831825SYuval Mintz XSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); 924fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &xstats, xstats_addr, sizeof(xstats)); 925fc831825SYuval Mintz 926fc831825SYuval Mintz p_stats->iscsi_tx_go_to_slow_start_event_cnt = 927fc831825SYuval Mintz HILO_64_REGPAIR(xstats.iscsi_tx_go_to_slow_start_event_cnt); 928fc831825SYuval Mintz p_stats->iscsi_tx_fast_retransmit_event_cnt = 929fc831825SYuval Mintz HILO_64_REGPAIR(xstats.iscsi_tx_fast_retransmit_event_cnt); 930fc831825SYuval Mintz } 931fc831825SYuval Mintz 932fc831825SYuval Mintz static void _qed_iscsi_get_ystats(struct qed_hwfn *p_hwfn, 933fc831825SYuval Mintz struct qed_ptt *p_ptt, 934fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 935fc831825SYuval Mintz { 936fc831825SYuval Mintz struct ystorm_iscsi_stats_drv ystats; 937fc831825SYuval Mintz u32 ystats_addr; 938fc831825SYuval Mintz 939fc831825SYuval Mintz memset(&ystats, 0, sizeof(ystats)); 940fc831825SYuval Mintz ystats_addr = BAR0_MAP_REG_YSDM_RAM + 941fc831825SYuval Mintz YSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); 942fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &ystats, ystats_addr, sizeof(ystats)); 943fc831825SYuval Mintz 944fc831825SYuval Mintz p_stats->iscsi_tx_data_pdu_cnt = 945fc831825SYuval Mintz HILO_64_REGPAIR(ystats.iscsi_tx_data_pdu_cnt); 946fc831825SYuval Mintz p_stats->iscsi_tx_r2t_pdu_cnt = 947fc831825SYuval Mintz HILO_64_REGPAIR(ystats.iscsi_tx_r2t_pdu_cnt); 948fc831825SYuval Mintz p_stats->iscsi_tx_total_pdu_cnt = 949fc831825SYuval Mintz HILO_64_REGPAIR(ystats.iscsi_tx_total_pdu_cnt); 950fc831825SYuval Mintz } 951fc831825SYuval Mintz 952fc831825SYuval Mintz static void _qed_iscsi_get_pstats(struct qed_hwfn *p_hwfn, 953fc831825SYuval Mintz struct qed_ptt *p_ptt, 954fc831825SYuval Mintz struct qed_iscsi_stats *p_stats) 955fc831825SYuval Mintz { 956fc831825SYuval Mintz struct pstorm_iscsi_stats_drv pstats; 957fc831825SYuval Mintz u32 pstats_addr; 958fc831825SYuval Mintz 959fc831825SYuval Mintz memset(&pstats, 0, sizeof(pstats)); 960fc831825SYuval Mintz pstats_addr = BAR0_MAP_REG_PSDM_RAM + 961fc831825SYuval Mintz PSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); 962fc831825SYuval Mintz qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats)); 963fc831825SYuval Mintz 964fc831825SYuval Mintz p_stats->iscsi_tx_bytes_cnt = 965fc831825SYuval Mintz HILO_64_REGPAIR(pstats.iscsi_tx_bytes_cnt); 966fc831825SYuval Mintz p_stats->iscsi_tx_packet_cnt = 967fc831825SYuval Mintz HILO_64_REGPAIR(pstats.iscsi_tx_packet_cnt); 968fc831825SYuval Mintz } 969fc831825SYuval Mintz 970fc831825SYuval Mintz static int qed_iscsi_get_stats(struct qed_hwfn *p_hwfn, 971fc831825SYuval Mintz struct qed_iscsi_stats *stats) 972fc831825SYuval Mintz { 973fc831825SYuval Mintz struct qed_ptt *p_ptt; 974fc831825SYuval Mintz 975fc831825SYuval Mintz memset(stats, 0, sizeof(*stats)); 976fc831825SYuval Mintz 977fc831825SYuval Mintz p_ptt = qed_ptt_acquire(p_hwfn); 978fc831825SYuval Mintz if (!p_ptt) { 979fc831825SYuval Mintz DP_ERR(p_hwfn, "Failed to acquire ptt\n"); 980fc831825SYuval Mintz return -EAGAIN; 981fc831825SYuval Mintz } 982fc831825SYuval Mintz 983fc831825SYuval Mintz _qed_iscsi_get_tstats(p_hwfn, p_ptt, stats); 984fc831825SYuval Mintz _qed_iscsi_get_mstats(p_hwfn, p_ptt, stats); 985fc831825SYuval Mintz _qed_iscsi_get_ustats(p_hwfn, p_ptt, stats); 986fc831825SYuval Mintz 987fc831825SYuval Mintz _qed_iscsi_get_xstats(p_hwfn, p_ptt, stats); 988fc831825SYuval Mintz _qed_iscsi_get_ystats(p_hwfn, p_ptt, stats); 989fc831825SYuval Mintz _qed_iscsi_get_pstats(p_hwfn, p_ptt, stats); 990fc831825SYuval Mintz 991fc831825SYuval Mintz qed_ptt_release(p_hwfn, p_ptt); 992fc831825SYuval Mintz 993fc831825SYuval Mintz return 0; 994fc831825SYuval Mintz } 995fc831825SYuval Mintz 996fc831825SYuval Mintz struct qed_hash_iscsi_con { 997fc831825SYuval Mintz struct hlist_node node; 998fc831825SYuval Mintz struct qed_iscsi_conn *con; 999fc831825SYuval Mintz }; 1000fc831825SYuval Mintz 1001fc831825SYuval Mintz static int qed_fill_iscsi_dev_info(struct qed_dev *cdev, 1002fc831825SYuval Mintz struct qed_dev_iscsi_info *info) 1003fc831825SYuval Mintz { 1004fc831825SYuval Mintz struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1005fc831825SYuval Mintz 1006fc831825SYuval Mintz int rc; 1007fc831825SYuval Mintz 1008fc831825SYuval Mintz memset(info, 0, sizeof(*info)); 1009fc831825SYuval Mintz rc = qed_fill_dev_info(cdev, &info->common); 1010fc831825SYuval Mintz 1011fc831825SYuval Mintz info->primary_dbq_rq_addr = 1012fc831825SYuval Mintz qed_iscsi_get_primary_bdq_prod(hwfn, BDQ_ID_RQ); 1013fc831825SYuval Mintz info->secondary_bdq_rq_addr = 1014fc831825SYuval Mintz qed_iscsi_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ); 1015fc831825SYuval Mintz 1016fc831825SYuval Mintz return rc; 1017fc831825SYuval Mintz } 1018fc831825SYuval Mintz 1019fc831825SYuval Mintz static void qed_register_iscsi_ops(struct qed_dev *cdev, 1020fc831825SYuval Mintz struct qed_iscsi_cb_ops *ops, void *cookie) 1021fc831825SYuval Mintz { 1022fc831825SYuval Mintz cdev->protocol_ops.iscsi = ops; 1023fc831825SYuval Mintz cdev->ops_cookie = cookie; 1024fc831825SYuval Mintz } 1025fc831825SYuval Mintz 1026fc831825SYuval Mintz static struct qed_hash_iscsi_con *qed_iscsi_get_hash(struct qed_dev *cdev, 1027fc831825SYuval Mintz u32 handle) 1028fc831825SYuval Mintz { 1029fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con = NULL; 1030fc831825SYuval Mintz 1031fc831825SYuval Mintz if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) 1032fc831825SYuval Mintz return NULL; 1033fc831825SYuval Mintz 1034fc831825SYuval Mintz hash_for_each_possible(cdev->connections, hash_con, node, handle) { 1035fc831825SYuval Mintz if (hash_con->con->icid == handle) 1036fc831825SYuval Mintz break; 1037fc831825SYuval Mintz } 1038fc831825SYuval Mintz 1039fc831825SYuval Mintz if (!hash_con || (hash_con->con->icid != handle)) 1040fc831825SYuval Mintz return NULL; 1041fc831825SYuval Mintz 1042fc831825SYuval Mintz return hash_con; 1043fc831825SYuval Mintz } 1044fc831825SYuval Mintz 1045fc831825SYuval Mintz static int qed_iscsi_stop(struct qed_dev *cdev) 1046fc831825SYuval Mintz { 1047fc831825SYuval Mintz int rc; 1048fc831825SYuval Mintz 1049fc831825SYuval Mintz if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) { 1050fc831825SYuval Mintz DP_NOTICE(cdev, "iscsi already stopped\n"); 1051fc831825SYuval Mintz return 0; 1052fc831825SYuval Mintz } 1053fc831825SYuval Mintz 1054fc831825SYuval Mintz if (!hash_empty(cdev->connections)) { 1055fc831825SYuval Mintz DP_NOTICE(cdev, 1056fc831825SYuval Mintz "Can't stop iscsi - not all connections were returned\n"); 1057fc831825SYuval Mintz return -EINVAL; 1058fc831825SYuval Mintz } 1059fc831825SYuval Mintz 1060fc831825SYuval Mintz /* Stop the iscsi */ 1061fc831825SYuval Mintz rc = qed_sp_iscsi_func_stop(QED_LEADING_HWFN(cdev), 1062fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1063fc831825SYuval Mintz cdev->flags &= ~QED_FLAG_STORAGE_STARTED; 1064fc831825SYuval Mintz 1065fc831825SYuval Mintz return rc; 1066fc831825SYuval Mintz } 1067fc831825SYuval Mintz 1068fc831825SYuval Mintz static int qed_iscsi_start(struct qed_dev *cdev, 1069fc831825SYuval Mintz struct qed_iscsi_tid *tasks, 1070fc831825SYuval Mintz void *event_context, 1071fc831825SYuval Mintz iscsi_event_cb_t async_event_cb) 1072fc831825SYuval Mintz { 1073fc831825SYuval Mintz int rc; 1074fc831825SYuval Mintz struct qed_tid_mem *tid_info; 1075fc831825SYuval Mintz 1076fc831825SYuval Mintz if (cdev->flags & QED_FLAG_STORAGE_STARTED) { 1077fc831825SYuval Mintz DP_NOTICE(cdev, "iscsi already started;\n"); 1078fc831825SYuval Mintz return 0; 1079fc831825SYuval Mintz } 1080fc831825SYuval Mintz 1081fc831825SYuval Mintz rc = qed_sp_iscsi_func_start(QED_LEADING_HWFN(cdev), 1082fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL, event_context, 1083fc831825SYuval Mintz async_event_cb); 1084fc831825SYuval Mintz if (rc) { 1085fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to start iscsi\n"); 1086fc831825SYuval Mintz return rc; 1087fc831825SYuval Mintz } 1088fc831825SYuval Mintz 1089fc831825SYuval Mintz cdev->flags |= QED_FLAG_STORAGE_STARTED; 1090fc831825SYuval Mintz hash_init(cdev->connections); 1091fc831825SYuval Mintz 1092fc831825SYuval Mintz if (!tasks) 1093fc831825SYuval Mintz return 0; 1094fc831825SYuval Mintz 1095fc831825SYuval Mintz tid_info = kzalloc(sizeof(*tid_info), GFP_KERNEL); 1096fc831825SYuval Mintz 1097fc831825SYuval Mintz if (!tid_info) { 1098fc831825SYuval Mintz qed_iscsi_stop(cdev); 1099fc831825SYuval Mintz return -ENOMEM; 1100fc831825SYuval Mintz } 1101fc831825SYuval Mintz 1102fc831825SYuval Mintz rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), 1103fc831825SYuval Mintz tid_info); 1104fc831825SYuval Mintz if (rc) { 1105fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to gather task information\n"); 1106fc831825SYuval Mintz qed_iscsi_stop(cdev); 1107fc831825SYuval Mintz kfree(tid_info); 1108fc831825SYuval Mintz return rc; 1109fc831825SYuval Mintz } 1110fc831825SYuval Mintz 1111fc831825SYuval Mintz /* Fill task information */ 1112fc831825SYuval Mintz tasks->size = tid_info->tid_size; 1113fc831825SYuval Mintz tasks->num_tids_per_block = tid_info->num_tids_per_block; 1114fc831825SYuval Mintz memcpy(tasks->blocks, tid_info->blocks, 1115fc831825SYuval Mintz MAX_TID_BLOCKS_ISCSI * sizeof(u8 *)); 1116fc831825SYuval Mintz 1117fc831825SYuval Mintz kfree(tid_info); 1118fc831825SYuval Mintz 1119fc831825SYuval Mintz return 0; 1120fc831825SYuval Mintz } 1121fc831825SYuval Mintz 1122fc831825SYuval Mintz static int qed_iscsi_acquire_conn(struct qed_dev *cdev, 1123fc831825SYuval Mintz u32 *handle, 1124fc831825SYuval Mintz u32 *fw_cid, void __iomem **p_doorbell) 1125fc831825SYuval Mintz { 1126fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1127fc831825SYuval Mintz int rc; 1128fc831825SYuval Mintz 1129fc831825SYuval Mintz /* Allocate a hashed connection */ 1130fc831825SYuval Mintz hash_con = kzalloc(sizeof(*hash_con), GFP_ATOMIC); 1131fc831825SYuval Mintz if (!hash_con) 1132fc831825SYuval Mintz return -ENOMEM; 1133fc831825SYuval Mintz 1134fc831825SYuval Mintz /* Acquire the connection */ 1135fc831825SYuval Mintz rc = qed_iscsi_acquire_connection(QED_LEADING_HWFN(cdev), NULL, 1136fc831825SYuval Mintz &hash_con->con); 1137fc831825SYuval Mintz if (rc) { 1138fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to acquire Connection\n"); 1139fc831825SYuval Mintz kfree(hash_con); 1140fc831825SYuval Mintz return rc; 1141fc831825SYuval Mintz } 1142fc831825SYuval Mintz 1143fc831825SYuval Mintz /* Added the connection to hash table */ 1144fc831825SYuval Mintz *handle = hash_con->con->icid; 1145fc831825SYuval Mintz *fw_cid = hash_con->con->fw_cid; 1146fc831825SYuval Mintz hash_add(cdev->connections, &hash_con->node, *handle); 1147fc831825SYuval Mintz 1148fc831825SYuval Mintz if (p_doorbell) 1149fc831825SYuval Mintz *p_doorbell = qed_iscsi_get_db_addr(QED_LEADING_HWFN(cdev), 1150fc831825SYuval Mintz *handle); 1151fc831825SYuval Mintz 1152fc831825SYuval Mintz return 0; 1153fc831825SYuval Mintz } 1154fc831825SYuval Mintz 1155fc831825SYuval Mintz static int qed_iscsi_release_conn(struct qed_dev *cdev, u32 handle) 1156fc831825SYuval Mintz { 1157fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1158fc831825SYuval Mintz 1159fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1160fc831825SYuval Mintz if (!hash_con) { 1161fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1162fc831825SYuval Mintz handle); 1163fc831825SYuval Mintz return -EINVAL; 1164fc831825SYuval Mintz } 1165fc831825SYuval Mintz 1166fc831825SYuval Mintz hlist_del(&hash_con->node); 1167fc831825SYuval Mintz qed_iscsi_release_connection(QED_LEADING_HWFN(cdev), hash_con->con); 1168fc831825SYuval Mintz kfree(hash_con); 1169fc831825SYuval Mintz 1170fc831825SYuval Mintz return 0; 1171fc831825SYuval Mintz } 1172fc831825SYuval Mintz 1173fc831825SYuval Mintz static int qed_iscsi_offload_conn(struct qed_dev *cdev, 1174fc831825SYuval Mintz u32 handle, 1175fc831825SYuval Mintz struct qed_iscsi_params_offload *conn_info) 1176fc831825SYuval Mintz { 1177fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1178fc831825SYuval Mintz struct qed_iscsi_conn *con; 1179fc831825SYuval Mintz 1180fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1181fc831825SYuval Mintz if (!hash_con) { 1182fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1183fc831825SYuval Mintz handle); 1184fc831825SYuval Mintz return -EINVAL; 1185fc831825SYuval Mintz } 1186fc831825SYuval Mintz 1187fc831825SYuval Mintz /* Update the connection with information from the params */ 1188fc831825SYuval Mintz con = hash_con->con; 1189fc831825SYuval Mintz 1190fc831825SYuval Mintz ether_addr_copy(con->local_mac, conn_info->src.mac); 1191fc831825SYuval Mintz ether_addr_copy(con->remote_mac, conn_info->dst.mac); 1192fc831825SYuval Mintz memcpy(con->local_ip, conn_info->src.ip, sizeof(con->local_ip)); 1193fc831825SYuval Mintz memcpy(con->remote_ip, conn_info->dst.ip, sizeof(con->remote_ip)); 1194fc831825SYuval Mintz con->local_port = conn_info->src.port; 1195fc831825SYuval Mintz con->remote_port = conn_info->dst.port; 1196fc831825SYuval Mintz 1197fc831825SYuval Mintz con->layer_code = conn_info->layer_code; 1198fc831825SYuval Mintz con->sq_pbl_addr = conn_info->sq_pbl_addr; 1199fc831825SYuval Mintz con->initial_ack = conn_info->initial_ack; 1200fc831825SYuval Mintz con->vlan_id = conn_info->vlan_id; 1201fc831825SYuval Mintz con->tcp_flags = conn_info->tcp_flags; 1202fc831825SYuval Mintz con->ip_version = conn_info->ip_version; 1203fc831825SYuval Mintz con->default_cq = conn_info->default_cq; 1204fc831825SYuval Mintz con->ka_max_probe_cnt = conn_info->ka_max_probe_cnt; 1205fc831825SYuval Mintz con->dup_ack_theshold = conn_info->dup_ack_theshold; 1206fc831825SYuval Mintz con->rcv_next = conn_info->rcv_next; 1207fc831825SYuval Mintz con->snd_una = conn_info->snd_una; 1208fc831825SYuval Mintz con->snd_next = conn_info->snd_next; 1209fc831825SYuval Mintz con->snd_max = conn_info->snd_max; 1210fc831825SYuval Mintz con->snd_wnd = conn_info->snd_wnd; 1211fc831825SYuval Mintz con->rcv_wnd = conn_info->rcv_wnd; 1212fc831825SYuval Mintz con->snd_wl1 = conn_info->snd_wl1; 1213fc831825SYuval Mintz con->cwnd = conn_info->cwnd; 1214fc831825SYuval Mintz con->ss_thresh = conn_info->ss_thresh; 1215fc831825SYuval Mintz con->srtt = conn_info->srtt; 1216fc831825SYuval Mintz con->rtt_var = conn_info->rtt_var; 1217fc831825SYuval Mintz con->ts_time = conn_info->ts_time; 1218fc831825SYuval Mintz con->ts_recent = conn_info->ts_recent; 1219fc831825SYuval Mintz con->ts_recent_age = conn_info->ts_recent_age; 1220fc831825SYuval Mintz con->total_rt = conn_info->total_rt; 1221fc831825SYuval Mintz con->ka_timeout_delta = conn_info->ka_timeout_delta; 1222fc831825SYuval Mintz con->rt_timeout_delta = conn_info->rt_timeout_delta; 1223fc831825SYuval Mintz con->dup_ack_cnt = conn_info->dup_ack_cnt; 1224fc831825SYuval Mintz con->snd_wnd_probe_cnt = conn_info->snd_wnd_probe_cnt; 1225fc831825SYuval Mintz con->ka_probe_cnt = conn_info->ka_probe_cnt; 1226fc831825SYuval Mintz con->rt_cnt = conn_info->rt_cnt; 1227fc831825SYuval Mintz con->flow_label = conn_info->flow_label; 1228fc831825SYuval Mintz con->ka_timeout = conn_info->ka_timeout; 1229fc831825SYuval Mintz con->ka_interval = conn_info->ka_interval; 1230fc831825SYuval Mintz con->max_rt_time = conn_info->max_rt_time; 1231fc831825SYuval Mintz con->initial_rcv_wnd = conn_info->initial_rcv_wnd; 1232fc831825SYuval Mintz con->ttl = conn_info->ttl; 1233fc831825SYuval Mintz con->tos_or_tc = conn_info->tos_or_tc; 1234fc831825SYuval Mintz con->remote_port = conn_info->remote_port; 1235fc831825SYuval Mintz con->local_port = conn_info->local_port; 1236fc831825SYuval Mintz con->mss = conn_info->mss; 1237fc831825SYuval Mintz con->snd_wnd_scale = conn_info->snd_wnd_scale; 1238fc831825SYuval Mintz con->rcv_wnd_scale = conn_info->rcv_wnd_scale; 1239fc831825SYuval Mintz con->ts_ticks_per_second = conn_info->ts_ticks_per_second; 1240fc831825SYuval Mintz con->da_timeout_value = conn_info->da_timeout_value; 1241fc831825SYuval Mintz con->ack_frequency = conn_info->ack_frequency; 1242fc831825SYuval Mintz 1243fc831825SYuval Mintz /* Set default values on other connection fields */ 1244fc831825SYuval Mintz con->offl_flags = 0x1; 1245fc831825SYuval Mintz 1246fc831825SYuval Mintz return qed_sp_iscsi_conn_offload(QED_LEADING_HWFN(cdev), con, 1247fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1248fc831825SYuval Mintz } 1249fc831825SYuval Mintz 1250fc831825SYuval Mintz static int qed_iscsi_update_conn(struct qed_dev *cdev, 1251fc831825SYuval Mintz u32 handle, 1252fc831825SYuval Mintz struct qed_iscsi_params_update *conn_info) 1253fc831825SYuval Mintz { 1254fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1255fc831825SYuval Mintz struct qed_iscsi_conn *con; 1256fc831825SYuval Mintz 1257fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1258fc831825SYuval Mintz if (!hash_con) { 1259fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1260fc831825SYuval Mintz handle); 1261fc831825SYuval Mintz return -EINVAL; 1262fc831825SYuval Mintz } 1263fc831825SYuval Mintz 1264fc831825SYuval Mintz /* Update the connection with information from the params */ 1265fc831825SYuval Mintz con = hash_con->con; 1266fc831825SYuval Mintz con->update_flag = conn_info->update_flag; 1267fc831825SYuval Mintz con->max_seq_size = conn_info->max_seq_size; 1268fc831825SYuval Mintz con->max_recv_pdu_length = conn_info->max_recv_pdu_length; 1269fc831825SYuval Mintz con->max_send_pdu_length = conn_info->max_send_pdu_length; 1270fc831825SYuval Mintz con->first_seq_length = conn_info->first_seq_length; 1271fc831825SYuval Mintz con->exp_stat_sn = conn_info->exp_stat_sn; 1272fc831825SYuval Mintz 1273fc831825SYuval Mintz return qed_sp_iscsi_conn_update(QED_LEADING_HWFN(cdev), con, 1274fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1275fc831825SYuval Mintz } 1276fc831825SYuval Mintz 1277fc831825SYuval Mintz static int qed_iscsi_clear_conn_sq(struct qed_dev *cdev, u32 handle) 1278fc831825SYuval Mintz { 1279fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1280fc831825SYuval Mintz 1281fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1282fc831825SYuval Mintz if (!hash_con) { 1283fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1284fc831825SYuval Mintz handle); 1285fc831825SYuval Mintz return -EINVAL; 1286fc831825SYuval Mintz } 1287fc831825SYuval Mintz 1288fc831825SYuval Mintz return qed_sp_iscsi_conn_clear_sq(QED_LEADING_HWFN(cdev), 1289fc831825SYuval Mintz hash_con->con, 1290fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1291fc831825SYuval Mintz } 1292fc831825SYuval Mintz 1293fc831825SYuval Mintz static int qed_iscsi_destroy_conn(struct qed_dev *cdev, 1294fc831825SYuval Mintz u32 handle, u8 abrt_conn) 1295fc831825SYuval Mintz { 1296fc831825SYuval Mintz struct qed_hash_iscsi_con *hash_con; 1297fc831825SYuval Mintz 1298fc831825SYuval Mintz hash_con = qed_iscsi_get_hash(cdev, handle); 1299fc831825SYuval Mintz if (!hash_con) { 1300fc831825SYuval Mintz DP_NOTICE(cdev, "Failed to find connection for handle %d\n", 1301fc831825SYuval Mintz handle); 1302fc831825SYuval Mintz return -EINVAL; 1303fc831825SYuval Mintz } 1304fc831825SYuval Mintz 1305fc831825SYuval Mintz hash_con->con->abortive_dsconnect = abrt_conn; 1306fc831825SYuval Mintz 1307fc831825SYuval Mintz return qed_sp_iscsi_conn_terminate(QED_LEADING_HWFN(cdev), 1308fc831825SYuval Mintz hash_con->con, 1309fc831825SYuval Mintz QED_SPQ_MODE_EBLOCK, NULL); 1310fc831825SYuval Mintz } 1311fc831825SYuval Mintz 1312fc831825SYuval Mintz static int qed_iscsi_stats(struct qed_dev *cdev, struct qed_iscsi_stats *stats) 1313fc831825SYuval Mintz { 1314fc831825SYuval Mintz return qed_iscsi_get_stats(QED_LEADING_HWFN(cdev), stats); 1315fc831825SYuval Mintz } 1316fc831825SYuval Mintz 1317fc831825SYuval Mintz static const struct qed_iscsi_ops qed_iscsi_ops_pass = { 1318fc831825SYuval Mintz .common = &qed_common_ops_pass, 1319fc831825SYuval Mintz .ll2 = &qed_ll2_ops_pass, 1320fc831825SYuval Mintz .fill_dev_info = &qed_fill_iscsi_dev_info, 1321fc831825SYuval Mintz .register_ops = &qed_register_iscsi_ops, 1322fc831825SYuval Mintz .start = &qed_iscsi_start, 1323fc831825SYuval Mintz .stop = &qed_iscsi_stop, 1324fc831825SYuval Mintz .acquire_conn = &qed_iscsi_acquire_conn, 1325fc831825SYuval Mintz .release_conn = &qed_iscsi_release_conn, 1326fc831825SYuval Mintz .offload_conn = &qed_iscsi_offload_conn, 1327fc831825SYuval Mintz .update_conn = &qed_iscsi_update_conn, 1328fc831825SYuval Mintz .destroy_conn = &qed_iscsi_destroy_conn, 1329fc831825SYuval Mintz .clear_sq = &qed_iscsi_clear_conn_sq, 1330fc831825SYuval Mintz .get_stats = &qed_iscsi_stats, 1331fc831825SYuval Mintz }; 1332fc831825SYuval Mintz 13337729bad4SArnd Bergmann const struct qed_iscsi_ops *qed_get_iscsi_ops(void) 1334fc831825SYuval Mintz { 1335fc831825SYuval Mintz return &qed_iscsi_ops_pass; 1336fc831825SYuval Mintz } 1337fc831825SYuval Mintz EXPORT_SYMBOL(qed_get_iscsi_ops); 1338fc831825SYuval Mintz 1339fc831825SYuval Mintz void qed_put_iscsi_ops(void) 1340fc831825SYuval Mintz { 1341fc831825SYuval Mintz } 1342fc831825SYuval Mintz EXPORT_SYMBOL(qed_put_iscsi_ops); 1343